9results about How to "Not easily affected" patented technology

The utility model discloses a kind of steel pipe pile supporting structures, mainly include side slope, concrete layer, two pipe pile row groups and protective layer, the water surface of side slope and backwater surface are supported and reinforced by pipe pile row group, and prevent direct impact of water flow, simultaneously, by protective structure and concrete layer on the bottom and both sides waist surface of side slope are covered and protected, further improve the stability of side slope structure, and prevent soil layer from being impacted by water flow, thereby the overall of supporting structure is relatively stable, not easy to be affected by water flow, and the laying equipment of steel pipe pile is relatively mature, operation is relatively simple, without more artificial simultaneously, to improve the efficiency of construction.

The invention relates to the technical field of cement and concrete, in particular to a Bayer process red mud volcanic ash activity evaluation method which comprises the following steps: calcining Bayer process red mud to be detected to obtain calcined Bayer process red mud; the polymerization degree of the calcined Bayer process red mud is measured by adopting Fourier transform infrared spectroscopy, the polymerization degree of the Bayer process red mud is in negative correlation with the activity, the pozzolanic activity of the Bayer process red mud is evaluated by measuring the polymerization degree, and the pozzolanic activity of the Bayer process red mud is evaluated by adopting the Fourier transform infrared spectroscopy to measure the polymerization degree of the Bayer process red mud. The polymerization degree of the red mud is reduced along with the increase of the volcanic ash activity and is in negative correlation, and the compressive strength and the dissolution solubility of Si + Al are in positive correlation with the volcanic ash activity of the red mud.

This application relates to the field of seismic measurement technology, and provides an apparatus and method for measuring cross-fault motion in experimental earthquakes. The apparatus includes a metal rod, an elastic compression spring installed at the first end of the metal rod, and a rod axial force gauge installed on the metal rod. The method involves installing the apparatus on a fault model and calculating fault motion. Based on the tensile stiffness K1 of the apparatus for measuring cross-fault motion in experimental earthquakes and the data recorded by the rod axial force gauge, the axial displacement of the metal rod, the shear displacement in the fault shear direction, and the real-time velocity and acceleration of the fault motion at time t are calculated. The apparatus for measuring cross-fault motion in experimental earthquakes of this application has a simple structure, is easy to manufacture, and can capture vibration information during fault instability without the need for complex field equipment deployment. It is not easily affected by the environment, and the test results are accurate. The method can accurately describe the instability process of experimental earthquakes.

The application discloses a low-smoke halogen-free flame-retardant fire-resistant branch cable and relates to the technical field of branch cables.The low-smoke halogen-free flame-retardant fire-resistant branch cable comprises two cable bodies and an insulating block, a protection mechanism is arranged between the two cable bodies, the protection mechanism comprises a double-hole frame, a main protection shell and an auxiliary protection shell, two housings are fixed to the surface of the main protection shell, and a plug rod is fixed to penetrate the inner surface of the double-hole frame. The protection mechanism can protect the "Y-shaped branch" at the branch joint of the low-smoke halogen-free flame-retardant fire-resistant branch cable, avoid the deformation or breakage of the joint due to the accidental falling of building materials, the collision of tools, the misoperation and pulling of construction personnel and the extrusion of other objects, ensure the normal power supply of the cable, promote the smooth progress of construction, and improve the use effect of the low-smoke halogen-free flame-retardant fire-resistant branch cable.

The utility model relates to camera technology field discloses a kind of suspension wire anti-shake motor and electronic equipment.The utility model discloses suspension wire anti-shake motor, comprising: first mover, second mover, suspension wire, upper spring piece, circuit board, detection unit and base;First mover occurs relative displacement in focusing direction;Second mover occurs relative displacement in shaking direction;Wherein, shaking direction is perpendicular to focusing direction;Upper spring piece is used to connect first mover and second mover, to make first mover with second mover synchronous movement in shaking direction;Upper spring piece is electrically connected with circuit board by suspension wire;Detection unit includes: receiving plate is arranged on first mover, transmitting plate is arranged on second mover, transmitting plate and receiving plate are oppositely arranged, and transmitting plate and receiving plate are electrically connected with circuit board by different upper spring piece respectively, and the displacement of first mover in focusing direction is detected according to the capacitance signal generated by transmitting plate and receiving plate.

The invention discloses an engine performance test bench tail gas treatment wire harness, and relates to the field of engine performance testing, the engine performance test bench tail gas treatment wire harness comprises a plurality of data transmission lines, a plug and a socket, and the front end of each data transmission line is provided with a plugging part; the plug is arranged at the front end of the plugging part, a plurality of jacks are formed in the plug, and the plugging parts are plugged in the jacks in a one-to-one correspondence manner; the socket is installed on the tail gas detection terminal and matched with the plug, the plug is inserted into the front end of the socket, a buckling assembly is installed above the plug, the buckling assembly can lock the plug in the socket, an unlocking assembly is installed at the position, located at the buckling assembly, above the socket, and the unlocking assembly can control the buckling assembly to unlock the plug. Through the structural design of the plug at the front end of the wire harness and the matched socket, all data transmission lines do not need to be pulled to a terminal position for one-to-one connection during installation, so that the operation is convenient, and the influence of the external environment is not easily caused.

The invention relates to the technical field of skirting board equipment, in particular to an integrated skirting board device for building interface pipeline hiding, which comprises a mounting mechanism, a first limiting mechanism and a second limiting mechanism. In the using process, according to an existing handrail structure needing to be protected, by increasing and decreasing the using number of the retention plates, the retention plates are spliced through existing bolts and limiting holes, and the spliced retention plates can be stably connected with an existing handrail through the mounting grooves and existing fastening equipment; the equipment can be conveniently and stably arranged at a specified use position according to the actual use condition, and then the use positions of the third channel steel and the clamping blocks after splicing can be conveniently adjusted through the guide strips by increasing or decreasing the use number of the third channel steel and the clamping blocks according to the hardness of the material of the power line body; and a stable supporting channel can be formed among the interiors of the multiple pieces of third channel steel.

This utility model relates to the field of electrical equipment, and discloses an installation structure, a roller assembly, and a cleaning device. The installation structure is simple, enabling convenient and quick disassembly and installation of the dirt-collecting tank, with high installation efficiency. Furthermore, it exhibits good structural stability and high reliability, preventing the dirt-collecting tank from shaking or shifting after installation. This installation structure is used to install the roller assembly of the cleaning device. The roller assembly includes a bracket and a dirt-collecting tank, with the tank detachably mounted on the bracket. The installation structure includes a cover and a dirt-collecting tank limiting structure. The cover is located at one end of the dirt-collecting tank, covering and connecting to the tank, and is detachably connected to the bracket. The dirt-collecting tank limiting structure is located between the cover and the tank, limiting one end of the tank to the cover.

The invention relates to the technical field of optical fiber sensing, in particular to an underground three-component optical fiber magnetic field sensor based on a micro-nano optical fiber and a system thereof. The fiber magnetic field sensor is constructed by wrapping the symmetrical biconical micro-nano fiber with a giant magnetostrictive rod. When the size of an underground magnetic field is changed, the internal molecular structure of the giant magnetostrictive rod is changed, so that the external structure is subjected to extension or contraction deformation, and meanwhile, the symmetrical biconical micro-nano optical fiber wrapped by the giant magnetostrictive rod is caused to generate basically identical extension or contraction; the broadband light source and the spectrograph which are connected to the two ends of the symmetrical biconical micro-nano optical fiber can detect the strain which is generated on the symmetrical biconical micro-nano optical fiber and is basically the same as the deformation of the giant magnetostrictive rod. By measuring the strain generated by the symmetrical biconical micro-nano optical fiber, the variable quantity of the external magnetic field can be calculated. An underground, land, aviation and seabed three-component magnetic field data acquisition system can be conveniently constructed by using the optical fiber magnetic field sensor.